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A Construction of Quantum LDPC Codes from Cayley Graphs

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arxiv 1206.2656 v3 pith:CD5ID6VH submitted 2012-06-12 cs.IT math.COmath.IT

classification cs.ITmath.COmath.IT
keywords codequantumclassicalcayleycodesconstructiondistancefrac
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abstract

We study a construction of Quantum LDPC codes proposed by MacKay, Mitchison and Shokrollahi. It is based on the Cayley graph of Fn together with a set of generators regarded as the columns of the parity-check matrix of a classical code. We give a general lower bound on the minimum distance of the Quantum code in $\mathcal{O}(dn^2)$ where d is the minimum distance of the classical code. When the classical code is the $[n, 1, n]$ repetition code, we are able to compute the exact parameters of the associated Quantum code which are $[[2^n, 2^{\frac{n+1}{2}}, 2^{\frac{n-1}{2}}]]$.

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Cited by 1 Pith paper

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  1. Conjugacy classes of linear actions in the plane Cremona group

    math.AG 2025-08 unverdicted novelty 5.0 of 10

    No central result can be verified: the manuscript body for arXiv:2508.09929 was not supplied, and the attached full text belongs to a different preprint.

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